Jose Hurtado

elvis on Substack A Deep Dive into Reasoning LLMs This is a really nice summary of the progress made in post-training and reasoning LLMs. Highly recommend this one!

substack.com/@elvissaravi...

Helpful!

Got shared this #visualization and #julialang blog post by
@johnbedwards.io:

johnbedwards.io/blog/big-dat...

Fantastic + exciting to see it being made using Julia +
@makie.org!

Ultimate question: can we get a #BillsMafia graphic? 👀 🦬

Keep up the awesome graphics! 🎨🖌️

Cognitive Biases and Artificial Intelligence Generative artificial intelligence (AI) models are increasingly utilized for medical applications. We tested whether such models are prone to human-like cognitive biases when offering medical recom...

🧠 Does AI make biased medical choices?

A new study shows that models like GPT-4 show biases in medical decisions. For example, they recommended surgery more often when survival rates were emphasised (75%) compared to death rates (12%).

🔗 doi.org/10.1056/AIcs...

#AI #Healthcare #SciComm 🧪

4,000-year-old bones reveal 'unprecedented' violence — tongue removal, cannibalism and evisceration in Bronze Age Britain The extremely violent treatment of the corpses of at least 37 Bronze Age people is rewriting the history of prehistoric Britain.

This is quite an assemblage of bones. I've never heard of anything like it from the Bronze Age. 🏺🧪

Understanding the neural code of stress to control anhedonia - Nature Examination of the neural activity in the basolateral amygdala and ventral CA1 of mice during tasks or rest following exposure to social stress reveals signatures of resilience and susceptibility to s...

Nature

Understanding the neural code of stress to control anhedonia

www.nature.com/articles/s41...

Doing good science is 90% finding a science buddy to constantly talk to about the project.

YouTube video by Sabine Hossenfelder The Crisis in Cosmology Just Got So Much Worse

Remember the crisis in cosmology? It just got worse.

www.youtube.com/watch?v=kKhD...

thinking of calling this "The Illusion Illusion"

(more examples below)

Figure 1: basic concept of fractal cycles of sleep.

Revised eLife version of our 'Fractal cycles of sleep' - a new aperiodic activity-based definition of sleep cycles:

elifesciences.org/reviewed-pre...

We have some plans how/where to apply the concept, but would be happy to receive additional ideas!

The brain microbiome: could understanding it help prevent dementia? Long thought to be sterile, our brains are now believed to harbour all sorts of micro-organisms, from bacteria to fungi. How big a part do they play in Alzheimer’s and similar diseases? Nine years ago, Nikki Schultek, an active and healthy woman in her…

The brain microbiome: could understanding it help prevent dementia?

Is the Universe Infinite or Finite? Is the universe really infinite? Or could it close back on itself like a sphere? If it’s infinite, how can it expand? And is it true that there might be copies of you in it? Take this quiz to check ho...

Is the universe really infinite? Or could it close back on itself like a sphere? If it’s infinite, how can it expand? Take this quiz to check how much you remember. You can now also create your own quizzes (with GPT!) on my website.

quizwithit.com/start_thequi...

This animation shows two massive black holes in the OJ 287 galaxy. The smaller #blackhole orbits the larger one, which remains stationary in the animation and is surrounded by a disk of gas. When the smaller #blackhole crashes through the disk, it produces a flare brighter than 1 trillion stars.

🚀 It's #FluorescenceFriday, and commissural axons are coming at you!

🧪🔬 15-hour time-lapse of chick commissural axons navigating and crossing the CNS midline (and reverse).

One stack taken every 10 minutes. Pixels were color-coded in the z-axis.

#LiveImaging #Neuroscience #Science #Microscopy 🧠✨

Neuronal sequences in population bursts encode information in human cortex - Nature The temporal order of neuronal firing within bursts of population spiking in the human anterior temporal lobe is dependent on the category as well as the identity of the individual stimulus, and this ...

This study shows that spike sequences carry information beyond what rates and latency to first spike do:

www.nature.com/articles/s41...

My reactions:

1) Cool to see this in humans.
2) Are people still surprised that spike times carry information beyond rates/first-spike latency?!?!?!

🧠📈 🧪

Repost if BlueSky is now your primary social media site.

Temporal dynamics of nucleus accumbens neurons in male mice during reward seeking - Nature Communications Volitional reward taking emerges through a sequence of preluding events. Yet, the underlying neural mechanism is not fully understood. Here authors show a series of temporal dynamics of nucleus accumb...

Nature Communications

Temporal dynamics of nucleus accumbens neurons in male mice during reward seeking
www.nature.com/articles/s41...

AI can now create a replica of your personality A two-hour interview is enough to accurately capture your values and preferences, according to new research from Stanford and Google DeepMind.

Filed in #philtech #aiethics

The cover may change, but I'm excited to announce my forthcoming (May 2023) book #GaiaWakes describing the evolution of an #AI -powered planetary brain as a next major upgrade to the scale / complexity of life on Earth.
#EconSky #philtech #philsci #STS #climatesky
cup.columbia.edu/book/gaia-wa...

Check it out! The future of Neurosynth.

We launched Neurosynth Compose: A free and open platform for neuroimaging meta-analysis. NS-Compose makes it easy to perform custom neuroimaging meta-analyses without leaving the browser.
It's live, check it out! compose.neurosynth.org

The website vs app split for Bluesky vs Threads captures the difference in user base and usage patterns beautifully.

Bluesky = knowledge sector workers who have it open all day in a tab next to their emails. “Wait what was I doing again?”

Threads = normies watching recipe videos on the commute.

Different Subregions of Monkey Lateral Prefrontal Cortex Respond to Abstract Sequences and Their Components Sequential information permeates daily activities, such as when watching for the correct series of buildings to determine when to get off the bus or train. These sequences include periodicity (the spa...

Different Subregions of Monkey Lateral Prefrontal Cortex Respond to Abstract Sequences and Their Components
www.jneurosci.org/content/44/4...
#neuroscience

‘Huge influx’ of neuroscientists migrates to Bluesky Daily neuroscience-related posts on the social-media platform this week have increased more than 400 percent, on average, compared with October.

Huge influx of neuroscientists migrates to Bluesky
www.thetransmitter.org/community/hu...
#Neuroscience

Microscopy image of a piece of the cortex of rhesus macaque. Markers shown are dapi (blue), pyramidal neurons in yellow (smi32), calreticulin (pink), and neun (purple).

A forest of neurons inside your head, happy #FluorescenceFriday! 🔬🧪🧠

I thought #fluorescencefriday would be a good opportunity for my first post here. Here are some crazy actin dynamics imaged with TIRF

Happy #FluorescenceFriday ! Let's celebrate with a colorful snapshot of the developing ventral spinal cord of a 🐣 embryo. #neuroscience #microscopy

Happy #FluorescenceFriday !
Let's celebrate with a colorful image of a developing ventral spinal cord of a 🐣 embryo.
#neuroscience #microscopy

Ventral frontostriatal circuitry mediates the computation of reinforcement from symbolic gains and losses Tang et al. show that OFC plays a more important role in learning from symbolic reinforcers than subcortical structures. OFC computes reinforcement signals and sends the information to the VS through ...

Our paper is published in the latest issue of NEURON. We examined the neural mechanisms involved in learning from the gains and losses of symbolic reinforcers in the ventral frontostriatal circuitry. 🧠
www.cell.com/neuron/abstr...

Artificial Neural Networks for Neuroscientists: A Primer Artificial neural networks (ANNs) are essential tools in modern machine learning. In this Primer, Yang and Wang introduce how new computational models based on ANNs can be built, analyzed, and customi...

Neuron

Artificial Neural Networks for Neuroscientists: A Primer

www.cell.com/neuron/fullt...

Chart showing that most masters degrees have a negative effect on earnings. exceptions are law, engineering, tech, chemistry and economics.

Is your master’s degree useless?

Don’t worry, LSE, your business model is probably unaffected.
www.economist.com/internationa...